fix: require INSTALL_DIR only in final packages, not in shells

chore: add license

docs: add information about other programs in main package binary folder

feat: add executables to fhs package, split to individual frameworks

fix: add missing libs for questa

feat: add shebangs

fix: pass arguments to questa scripts

feat: add modelsim.ini to questa package

feat: add questa executable files

feat: add Lattice Diamond shell

feat: add Quartus

fix: ise-fw copy files

Initial commit